CN201459524U - Structure of vibration absorbing type ballastless track subgrade bed - Google Patents
Structure of vibration absorbing type ballastless track subgrade bed Download PDFInfo
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- CN201459524U CN201459524U CN2009200818912U CN200920081891U CN201459524U CN 201459524 U CN201459524 U CN 201459524U CN 2009200818912 U CN2009200818912 U CN 2009200818912U CN 200920081891 U CN200920081891 U CN 200920081891U CN 201459524 U CN201459524 U CN 201459524U
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Abstract
The utility model discloses a structure of a vibration absorbing type ballastless track subgrade bed, and aims to ensure not only good waterproof quality but also remarkable functions of vibration absorption and noise reduction of the subgrade bed. The subgrade bed comprises a subgrade bed bottom layer (10) and a subgrade bed surface layer (20), wherein the subgrade bed surface layer (20) comprises an upper subgrade bed surface layer (21) and a lower subgrade bed surface layer (22), and the upper subgrade bed surface layer (21) adopts an asphalt concrete layer. The utility model has the benefits as follows: the asphalt concrete layer is taken as the upper subgrade bed surface layer, so that the subgrade bed has the functions of bearing, water resistance and vibration absorption, and long-term stability of the dynamic property of the subgrade bed is ensured; moreover, with convenient construction and less interference, the construction quality of the asphalt concrete layer can be easily ensured and the construction efficiency thereof can be improved.
Description
Technical field
The utility model relates to ballastless track of high-speed railway, particularly is used for the subgrade bed of ballastless track of high-speed railway.
Background technology
Subgrade bed directly bears the train load that track transmits as sub rail foundation, and its form of structure and material property directly influence traffic safety and comfortable.Subgrade bed generally is made up of surface layer of subgrade bed and bottom layer of subgrade.In present domestic high-speed railway, surface layer of subgrade bed adopts graded broken stone or graded sand gravel to fill more, bottom layer of subgrade adopts A group filler or B group filler to fill, and has good drainage for making bedding, lays the bituminous waterproofing compound as the waterproof confining bed on subgrade bed top layer, road bed both sides.Its weak point is the restriction that is subjected to the surface layer of subgrade bed material, vibration damping, noise reduction effect are not obvious, be unfavorable for further improving the ride comfort and the comfortableness of high-speed railway operation, and road bed both sides bituminous waterproofing compound waterproof confining bed,, construction narrow because of the construction plant disturbed big, and construction quality is difficult to be guaranteed.
The utility model content
Technical problem to be solved in the utility model provides a kind of damping type non-fragment orbit subgrade bed structure, not only has favorable waterproof property, and vibration damping, noise reduction effect are obvious.
The technical scheme that its technical problem that solves the utility model adopts is: damping type track base without broken stones bedding structure of the present utility model, bedding is made of bottom layer of subgrade and surface layer of subgrade bed, it is characterized in that: described surface layer of subgrade bed is made of top layer under bedding upper epidermis, the bedding, and wherein the bedding upper epidermis is an asphalt concrete layer.
The beneficial effects of the utility model are that as the subgrade bed upper epidermis, subgrade bed has the function of carrying, waterproof and vibration damping with asphalt concrete layer, can guarantee subgrade bed power performance long-term stability; And easy construction is disturbed for a short time, and the asphalt concrete layer construction quality is easy to guarantee, improves efficiency of construction.
Description of drawings
This manual comprises following two width of cloth accompanying drawings:
Fig. 1 is the profile of the utility model damping type non-fragment orbit subgrade bed structure;
Fig. 2 is the zoomed-in view of A part among Fig. 1.
Toponym shown in the figure and pairing mark: top layer 22 under bottom layer of subgrade 10, surface layer of subgrade bed 20, bedding upper epidermis 21, the bedding.
The specific embodiment
Below in conjunction with drawings and Examples utility model is further specified.
See figures.1.and.2, damping type track base without broken stones bedding structure of the present utility model, bedding is made of bottom layer of subgrade 10 and surface layer of subgrade bed 20. and described surface layer of subgrade bed 20 is by bedding upper epidermis 21, top layer 22 constitutes under the bedding, wherein bedding upper epidermis 21 is an asphalt concrete layer. with the filler of bituminous concrete as last surface layer of subgrade bed 21, subgrade bed has carrying, the function of waterproof and vibration damping, can guarantee subgrade bed power performance long-term stability, helping further improving the ride comfort and the comfortableness of high-speed railway operation. the bedding upper epidermis 21 that plays waterproof action is to lay along the full section width on top layer under the bedding 22 basically, easy construction, disturb little, construction quality is easy to guarantee, improves efficiency of construction.
As a kind of typical scheme, top layer 22 is graded broken stone layer or graded sand gravel layer under the described bedding.The thickness sum on top layer 22 is 60cm under described bedding upper epidermis 21 and the bedding, and wherein bedding upper epidermis 21 thickness are 10～15cm.Described bottom layer of subgrade 10 is A group packing layer or B group packing layer, and thickness is 190cm.
The above damping type non-fragment orbit subgrade bed of the present utility model that just explains through diagrams is constructed some principles, be not be the utility model to be confined to shown in and in described concrete structure and the scope of application, so every the corresponding modify and equivalent that might be utilized all belongs to the claim that the utility model is applied for.
Claims (4)
1. damping type non-fragment orbit subgrade bed is constructed, bedding is made of bottom layer of subgrade (10) and surface layer of subgrade bed (20), it is characterized in that: described surface layer of subgrade bed (20) is made of top layer (22) under bedding upper epidermis (21), the bedding, and wherein bedding upper epidermis (21) is an asphalt concrete layer.
2. damping type non-fragment orbit subgrade bed structure as claimed in claim 1 is characterized in that: top layer under the described bedding (22) are graded broken stone layer or graded sand gravel layer.
3. damping type non-fragment orbit subgrade bed structure as claimed in claim 2, it is characterized in that: the thickness sum on top layer (22) is 60cm under described bedding upper epidermis (21) and the bedding, and wherein the thickness of bedding upper epidermis (21) is 10～15cm.
4. damping type non-fragment orbit subgrade bed structure as claimed in claim 3 is characterized in that: described bottom layer of subgrade (10) is A group packing layer or B group packing layer, and thickness is 190cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200818912U CN201459524U (en) | 2009-06-22 | 2009-06-22 | Structure of vibration absorbing type ballastless track subgrade bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200818912U CN201459524U (en) | 2009-06-22 | 2009-06-22 | Structure of vibration absorbing type ballastless track subgrade bed |
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| Publication Number | Publication Date |
|---|---|
| CN201459524U true CN201459524U (en) | 2010-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009200818912U Expired - Lifetime CN201459524U (en) | 2009-06-22 | 2009-06-22 | Structure of vibration absorbing type ballastless track subgrade bed |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102605684A (en) * | 2012-04-18 | 2012-07-25 | 北京市市政工程设计研究总院 | Low assembly type monolithic roadbed with elastic short sleeper and construction method thereof |
| CN102787533A (en) * | 2012-09-04 | 2012-11-21 | 铁道第三勘察设计院集团有限公司 | Modification structure of railway subgrade bed surface layer |
| CN104018404A (en) * | 2014-06-09 | 2014-09-03 | 东南大学 | Flexible basic structure for high speed railway ballastless track and laying method of track |
| CN104652179A (en) * | 2015-01-22 | 2015-05-27 | 中铁二院工程集团有限责任公司 | Surface layer-reinforced and waterproof heavy-axle load heavy-haul railway subgrade bed structure |
| CN105401492A (en) * | 2015-12-22 | 2016-03-16 | 成都市新筑路桥机械股份有限公司 | Waterproof vibration-damping composite structure applied to embedded track system and construction method of waterproof vibration-damping composite structure |
| CN105714621A (en) * | 2016-01-27 | 2016-06-29 | 东南大学 | Ballastless track-structured waterproof vibration-reducing flexible protecting structure and paving method thereof |
| CN107558309A (en) * | 2017-09-26 | 2018-01-09 | 武汉理工大学 | A kind of vibration damping thermal insulation type unit plate type ballastless track structure |
| CN108625228A (en) * | 2018-05-11 | 2018-10-09 | 北京铁科特种工程技术开发公司 | A kind of weather-proof bituminous concrete ballastless track structure |
| CN108842521A (en) * | 2018-05-21 | 2018-11-20 | 西南交通大学 | The contact layer structure and its laying method of non-fragment orbit and surface layer of subgrade bed |
| CN109082948A (en) * | 2018-09-03 | 2018-12-25 | 东南大学 | The anti-cracking structure and implementation method of asphalt concrete layer under a kind of base plate expansion joint |
| CN109295815A (en) * | 2018-08-14 | 2019-02-01 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of ballastless track structure |
| CN110258193A (en) * | 2019-07-04 | 2019-09-20 | 东南大学 | A kind of durable flexible structure and construction method for punishing high-speed rail roadbed water-protected enclosure layer |
| CN111268943A (en) * | 2020-02-10 | 2020-06-12 | 北京铁科特种工程技术有限公司 | Asphalt graded broken stone for high-speed railway roadbed and preparation method thereof |
-
2009
- 2009-06-22 CN CN2009200818912U patent/CN201459524U/en not_active Expired - Lifetime
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102605684A (en) * | 2012-04-18 | 2012-07-25 | 北京市市政工程设计研究总院 | Low assembly type monolithic roadbed with elastic short sleeper and construction method thereof |
| CN102787533A (en) * | 2012-09-04 | 2012-11-21 | 铁道第三勘察设计院集团有限公司 | Modification structure of railway subgrade bed surface layer |
| CN104018404A (en) * | 2014-06-09 | 2014-09-03 | 东南大学 | Flexible basic structure for high speed railway ballastless track and laying method of track |
| CN104018404B (en) * | 2014-06-09 | 2016-06-22 | 东南大学 | Ballastless track of high-speed railway flexible foundation structure and method for paving thereof |
| CN104652179A (en) * | 2015-01-22 | 2015-05-27 | 中铁二院工程集团有限责任公司 | Surface layer-reinforced and waterproof heavy-axle load heavy-haul railway subgrade bed structure |
| CN105401492A (en) * | 2015-12-22 | 2016-03-16 | 成都市新筑路桥机械股份有限公司 | Waterproof vibration-damping composite structure applied to embedded track system and construction method of waterproof vibration-damping composite structure |
| CN105714621A (en) * | 2016-01-27 | 2016-06-29 | 东南大学 | Ballastless track-structured waterproof vibration-reducing flexible protecting structure and paving method thereof |
| CN107558309A (en) * | 2017-09-26 | 2018-01-09 | 武汉理工大学 | A kind of vibration damping thermal insulation type unit plate type ballastless track structure |
| CN108625228A (en) * | 2018-05-11 | 2018-10-09 | 北京铁科特种工程技术开发公司 | A kind of weather-proof bituminous concrete ballastless track structure |
| CN108625228B (en) * | 2018-05-11 | 2020-05-19 | 北京铁科特种工程技术有限公司 | Weather-resistant asphalt concrete ballastless track structure |
| CN108842521A (en) * | 2018-05-21 | 2018-11-20 | 西南交通大学 | The contact layer structure and its laying method of non-fragment orbit and surface layer of subgrade bed |
| CN109295815A (en) * | 2018-08-14 | 2019-02-01 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of ballastless track structure |
| CN109082948A (en) * | 2018-09-03 | 2018-12-25 | 东南大学 | The anti-cracking structure and implementation method of asphalt concrete layer under a kind of base plate expansion joint |
| CN109082948B (en) * | 2018-09-03 | 2020-05-12 | 东南大学 | Anti-cracking structure of asphalt concrete layer under base plate expansion joint and implementation method |
| CN110258193A (en) * | 2019-07-04 | 2019-09-20 | 东南大学 | A kind of durable flexible structure and construction method for punishing high-speed rail roadbed water-protected enclosure layer |
| CN110258193B (en) * | 2019-07-04 | 2024-04-16 | 东南大学 | Durable and flexible structure for treating waterproof sealing layer of high-speed railway foundation and construction method |
| CN111268943A (en) * | 2020-02-10 | 2020-06-12 | 北京铁科特种工程技术有限公司 | Asphalt graded broken stone for high-speed railway roadbed and preparation method thereof |
| CN111268943B (en) * | 2020-02-10 | 2021-12-21 | 北京铁科特种工程技术有限公司 | Asphalt graded broken stone for high-speed railway roadbed and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |